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/*
* demux.cpp: A plugin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
* $Id$
*/
#include "demux.h"
cMarkAdDemux::cMarkAdDemux(int RecvNumber)
{
ts2pkt=new cMarkAdTS2Pkt(RecvNumber);
pes2audioes=NULL;
pkt=NULL;
pesptr=NULL;
pktlen=0;
tsdata=tsptr=NULL;
tssize=0;
}
cMarkAdDemux::~cMarkAdDemux()
{
if (ts2pkt) delete ts2pkt;
if (pes2audioes) delete pes2audioes;
if (tsdata) free(tsdata);
}
int cMarkAdDemux::Process(MarkAdPid Pid, uchar *Data, int Count, uchar **Pkt, int *PktLen)
{
if ((!Data) && (!Count) && (!ts2pkt) && (!pes2audioes) ||
(!Pkt) || (!PktLen) || (!Pid.Num)) return -1;
*Pkt=NULL;
*PktLen=0;
int len=-1; // we don't want loops
if (!pktlen)
{
if (tssize<TS_SIZE)
{
tsdata=(uchar *) realloc(tsdata,tssize+Count);
if (!tsdata) return -1;
memcpy(tsdata+tssize,Data,Count);
tssize+=Count;
tsptr=tsdata;
if (tssize<TS_SIZE) return Count;
}
len=ts2pkt->Process(Pid,tsdata,tssize,&pkt,&pktlen);
int bufleftsize=tssize-len;
uchar *ptr=(uchar *) malloc(bufleftsize);
if (!ptr) return -1;
memcpy(ptr,tsdata+len,bufleftsize);
free(tsdata);
tsdata=ptr;
tssize=bufleftsize;
if (tssize<TS_SIZE)
{
len=Count;
}
else
{
len=0;
}
}
if (pkt)
{
if ((((pkt[3]>=0xc0) && (pkt[3]<=0xDF)) || (pkt[3]==0xBD))
&& (!pesptr))
{
if (!pes2audioes)
{
pes2audioes=new cMarkAdPES2AudioES();
}
if (pes2audioes)
{
pesptr=pkt;
}
else
{
pesptr=NULL;
}
}
if (pesptr)
{
if (len==-1) len=0;
uchar *esdata;
int essize;
while (pktlen>0)
{
int len2=pes2audioes->Process(pesptr,pktlen,&esdata,&essize);
if (len2<0)
{
break;
}
else
{
if (esdata)
{
*Pkt=esdata;
*PktLen=essize;
}
pesptr+=len2;
pktlen-=len2;
if (!pktlen) pesptr=NULL;
break;
}
}
}
else
{
*Pkt=pkt;
*PktLen=pktlen;
pkt=pesptr=NULL;
pktlen=0;
}
}
return len;
}
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